Counterfeit detector offers the ultimate protection against counterfeit currency and falsified documents. The compact, portable, highly effective countertop unit provides triple protection with the latest in ultraviolet LEDs to detect imbedded security markings, white LEDs to reveal watermarks, and the reliable Smart Money Counterfeit Detector Pen to test for genuine currency paper. The counterfeit detector helps protect you from all types of counterfeit currency, including bleached bills. You can also use the counterfeit detector to authenticate drivers' licenses, passports, credit cards, travelers' checks and more. Super long-life LED unit is powered by three AAA batteries (sold separately).